imported KAME-DHCPv6 snapshot at 20051201KAME_20051201

1 files changed, 289 insertions, 0 deletions

diff --git a/config.h b/config.h
new file mode 100644
index 0000000..156a93a
--- /dev/null
+++ b/config.h
@@ -0,0 +1,289 @@
+/*	$KAME: config.h,v 1.39 2005/04/01 12:43:36 jinmei Exp $	*/
+
+/*
+ * Copyright (C) 2002 WIDE Project.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* definitions of tail-queue types */
+TAILQ_HEAD(ia_conflist, ia_conf);
+TAILQ_HEAD(pifc_list, prefix_ifconf);
+
+/* per-interface information */
+struct dhcp6_if {
+	struct dhcp6_if *next;
+
+	/* timer for the interface */
+	struct dhcp6_timer *timer;
+
+	/* event queue */
+	TAILQ_HEAD(, dhcp6_event) event_list;
+
+	/* static parameters of the interface */
+	char *ifname;
+	unsigned int ifid;
+	u_int32_t linkid;	/* to send link-local packets */
+
+	/* configuration parameters */
+	u_long send_flags;
+	u_long allow_flags;
+#define DHCIFF_INFO_ONLY 0x1
+#define DHCIFF_RAPID_COMMIT 0x2
+
+	int server_pref;	/* server preference (server only) */
+
+	char *scriptpath;	/* path to config script (client only) */
+
+	struct dhcp6_list reqopt_list;
+	struct ia_conflist iaconf_list;
+
+	/* authentication information */
+	int authproto;		/* protocol */
+	/* the followings are valid only if authproto is not UNDEF */
+	int authalgorithm;	/* algorithm */
+	int authrdm;		/* replay attack detection method */
+};
+
+/* run-time authentication parameters */
+struct authparam {
+	int authproto;
+	int authalgorithm;
+	int authrdm;
+	struct keyinfo *key;
+	int flags;
+#define AUTHPARAM_FLAGS_NOPREVRD	0x1
+
+	u_int64_t prevrd;	/* previous RD value provided by the peer */
+};
+
+struct dhcp6_event {
+	TAILQ_ENTRY(dhcp6_event) link;
+
+	struct dhcp6_if *ifp;
+	struct dhcp6_timer *timer;
+
+	struct duid serverid;
+
+	struct timeval tv_start; /* timestamp when the 1st msg is sent */
+
+	/* internal timer parameters */
+	long retrans;
+	long init_retrans;
+	long max_retrans_cnt;
+	long max_retrans_time;
+	long max_retrans_dur;
+	int timeouts;		/* number of timeouts */
+
+	u_int32_t xid;		/* current transaction ID */
+	int state;
+
+	/* list of known servers */
+	struct dhcp6_serverinfo *current_server;
+	struct dhcp6_serverinfo *servers;
+
+	/* authentication parameters */
+	struct authparam *authparam;
+
+	TAILQ_HEAD(, dhcp6_eventdata) data_list;
+};
+
+typedef enum { DHCP6_EVDATA_IAPD, DHCP6_EVDATA_IANA } dhcp6_eventdata_t;
+
+struct dhcp6_eventdata {
+	TAILQ_ENTRY(dhcp6_eventdata) link;
+
+	struct dhcp6_event *event;
+	dhcp6_eventdata_t type;
+	void *data;
+
+	void (*destructor) __P((struct dhcp6_eventdata *));
+	void *privdata;
+};
+
+struct dhcp6_serverinfo {
+	struct dhcp6_serverinfo *next;
+
+	/* option information provided in the advertisement */
+	struct dhcp6_optinfo optinfo;
+
+	int pref;		/* preference */
+	int active;		/* bool; if this server is active or not */
+
+	struct authparam *authparam; /* authentication parameters */
+
+	/* TODO: remember available information from the server */
+};
+
+/* client status code */
+enum {DHCP6S_INIT, DHCP6S_SOLICIT, DHCP6S_INFOREQ, DHCP6S_REQUEST,
+      DHCP6S_RENEW, DHCP6S_REBIND, DHCP6S_RELEASE, DHCP6S_IDLE};
+
+struct prefix_ifconf {
+	TAILQ_ENTRY(prefix_ifconf) link;
+
+	char *ifname;		/* interface name such as ne0 */
+	int sla_len;		/* SLA ID length in bits */
+	u_int32_t sla_id;	/* need more than 32bits? */
+	int ifid_len;		/* interface ID length in bits */
+	int ifid_type;		/* EUI-64 and manual (unused?) */
+	char ifid[16];		/* Interface ID, up to 128bits */
+};
+#define IFID_LEN_DEFAULT 64
+#define SLA_LEN_DEFAULT 16
+
+typedef enum { IATYPE_PD, IATYPE_NA } iatype_t;
+struct ia_conf {
+	TAILQ_ENTRY(ia_conf) link;
+	/*struct ia_conf *next;*/
+	iatype_t type;
+	u_int32_t iaid;
+
+	TAILQ_HEAD(, ia) iadata; /* struct ia is an opaque type */
+
+	/* type dependent values follow */
+};
+
+struct iapd_conf {
+	struct ia_conf iapd_ia;
+
+	/* type dependent values follow */
+	struct dhcp6_list iapd_prefix_list;
+	struct pifc_list iapd_pif_list;
+};
+#define iapd_next iapd_ia.next
+#define iapd_type iapd_ia.type
+#define iapd_id iapd_ia.iaid
+
+struct iana_conf {
+	struct ia_conf iana_ia;
+
+	/* type dependent values follow */
+	struct dhcp6_list iana_address_list;
+};
+#define iana_next iana_ia.next
+
+/* per-host configuration */
+struct host_conf {
+	struct host_conf *next;
+
+	char *name;		/* host name to identify the host */
+	struct duid duid;	/* DUID for the host */
+
+	/* prefixes to be delegated to the host */
+	struct dhcp6_list prefix_list;
+	/* address to be assigned for the host */
+	struct dhcp6_list addr_list;
+
+	/* secret key shared with the client for delayed authentication */
+	struct keyinfo *delayedkey;
+	/* previous replay detection value from the client */
+	int saw_previous_rd;	/* if we remember the previous value */
+	u_int64_t previous_rd;
+};
+
+/* DHCPv6 authentication information */
+struct authinfo {
+	struct authinfo *next;
+
+	char *name;		/* auth info name */
+
+	int protocol;		/* authentication protocol */
+	int algorithm;		/* authentication algorithm */
+	int rdm;		/* random attack detection method */
+
+	/* keys specific to this info? */
+};
+
+/* structures and definitions used in the config file parser */
+struct cf_namelist {
+	struct cf_namelist *next;
+	char *name;
+	int line;		/* the line number of the config file */
+	struct cf_list *params;
+};
+
+struct cf_list {
+	struct cf_list *next;
+	struct cf_list *tail;
+	int type;
+	int line;		/* the line number of the config file */
+
+	/* type dependent values: */
+	long long num;
+	struct cf_list *list;
+	void *ptr;
+};
+
+enum { DECL_SEND, DECL_ALLOW, DECL_INFO_ONLY, DECL_REQUEST, DECL_DUID,
+       DECL_PREFIX, DECL_PREFERENCE, DECL_SCRIPT, DECL_DELAYEDKEY,
+       DECL_ADDRESS,
+       IFPARAM_SLA_ID, IFPARAM_SLA_LEN,
+       DHCPOPT_RAPID_COMMIT, DHCPOPT_AUTHINFO,
+       DHCPOPT_DNS, DHCPOPT_DNSNAME,
+       DHCPOPT_IA_PD, DHCPOPT_IA_NA, DHCPOPT_NTP,
+       DHCPOPT_REFRESHTIME,
+       CFLISTENT_GENERIC,
+       IACONF_PIF, IACONF_PREFIX, IACONF_ADDR,
+       DHCPOPT_SIP, DHCPOPT_SIPNAME,
+       AUTHPARAM_PROTO, AUTHPARAM_ALG, AUTHPARAM_RDM, AUTHPARAM_KEY,
+       KEYPARAM_REALM, KEYPARAM_KEYID, KEYPARAM_SECRET, KEYPARAM_EXPIRE };
+
+typedef enum {DHCP6_MODE_SERVER, DHCP6_MODE_CLIENT, DHCP6_MODE_RELAY }
+dhcp6_mode_t;
+
+extern const dhcp6_mode_t dhcp6_mode;
+
+extern struct dhcp6_if *dhcp6_if;
+extern struct dhcp6_ifconf *dhcp6_iflist;
+extern struct prefix_ifconf *prefix_ifconflist;
+extern struct dhcp6_list siplist;
+extern struct dhcp6_list sipnamelist;
+extern struct dhcp6_list dnslist;
+extern struct dhcp6_list dnsnamelist;
+extern struct dhcp6_list ntplist;
+extern long long optrefreshtime;
+
+extern struct dhcp6_if *ifinit __P((char *));
+extern int ifreset __P((struct dhcp6_if *));
+extern int configure_interface __P((struct cf_namelist *));
+extern int configure_host __P((struct cf_namelist *));
+extern int configure_keys __P((struct cf_namelist *));
+extern int configure_authinfo __P((struct cf_namelist *));
+extern int configure_ia __P((struct cf_namelist *, iatype_t));
+extern int configure_global_option __P((void));
+extern void configure_cleanup __P((void));
+extern void configure_commit __P((void));
+extern int cfparse __P((char *));
+extern struct dhcp6_if *find_ifconfbyname __P((char *));
+extern struct dhcp6_if *find_ifconfbyid __P((unsigned int));
+extern struct prefix_ifconf *find_prefixifconf __P((char *));
+extern struct host_conf *find_hostconf __P((struct duid *));
+extern struct authinfo *find_authinfo __P((struct authinfo *, char *));
+extern struct dhcp6_prefix *find_prefix6 __P((struct dhcp6_list *,
+					      struct dhcp6_prefix *));
+extern struct ia_conf *find_iaconf __P((struct ia_conflist *, int, u_int32_t));
+extern struct keyinfo *find_key __P((char *, size_t, u_int32_t));